Synthetic Route of 671802-00-9, Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 671802-00-9, name is tert-Butyl 3-(2-hydroxyethoxy)propanoate. A new synthetic method of this compound is introduced below.
To a solution of fe/f-butyl 3-(2-hydroxyethoxy)propanoate (500.0 mg, 2.63 mmol) in DCM (2 ml_) were added CBr4 (1395 mg, 4.21 mmol) and PPh3 (965 mg, 3.68 mmol) at 0 C. The mixture was stirred at room temperature for 2 h. The resulting mixture was concentrated under reduced pressure and the residue was purified by silica gel column chromatography, eluting with a gradient 1 % – 15% of ethyl acetate in petroleum ether. The fractions containing the desired product were combined and concentrated to afford tert- butyl 6-bromohexanoate. Thus prepared, a solution of tert-butyl 6-bromohexanoate (5 g, 19.91 mmol) in acetonitrile (10 ml) was treated with trimethylamine (13.56 ml, 59.7 mmol) and the resulting solution was heated at 50 C overnight. The solution was concentrated to give lnt-4ba. LC/MS: M+= 230.3.
At the same time, in my other blogs, there are other synthetic methods of this type of compound,671802-00-9, tert-Butyl 3-(2-hydroxyethoxy)propanoate, and friends who are interested can also refer to it.
Reference:
Patent; MERCK SHARP & DOHME CORP.; WOOD, Harold, B.; JOSIEN, Hubert, B.; TUCKER, Thomas, Joseph; KEREKES, Angela, Dawn; TONG, Ling; WALJI, Abbas, M.; NAIR, Anikumar, G.; DING, Fa-Xiang; BIANCHI, Elisabetta; BRANCA, Danila; WU, Chengwei; XIONG, Yusheng; HA, Sookhee, Nicole; LIU, Jian; BOGA, Sobhana, Babu; (183 pag.)WO2019/246349; (2019); A1;,
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